/***
*marquee controll
*/

function MCoperation(obj,id){
     if(obj.innerHTML == '播放'){
    	   document.documentElement.getElementsByTagName("marquee").start();
     	   obj.innerHTML = '暂停';
     }else{
    	   document.documentElement.getElementsByTagName("marquee").stop();
     	   obj.innerHTML = '播放';
     }
}

